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-rw-r--r--drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c11
1 files changed, 4 insertions, 7 deletions
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c
index 4d3481baaead..665eb1d4cb8a 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder_phys_cmd.c
@@ -372,15 +372,12 @@ static void dpu_encoder_phys_cmd_tearcheck_config(
tc_cfg.vsync_count = vsync_hz /
(mode->vtotal * drm_mode_vrefresh(mode));
- /* enable external TE after kickoff to avoid premature autorefresh */
- tc_cfg.hw_vsync_mode = 0;
-
/*
- * By setting sync_cfg_height to near max register value, we essentially
- * disable dpu hw generated TE signal, since hw TE will arrive first.
- * Only caveat is if due to error, we hit wrap-around.
+ * Set the sync_cfg_height to twice vtotal so that if we lose a
+ * TE event coming from the display TE pin we won't stall immediately
*/
- tc_cfg.sync_cfg_height = 0xFFF0;
+ tc_cfg.hw_vsync_mode = 1;
+ tc_cfg.sync_cfg_height = mode->vtotal * 2;
tc_cfg.vsync_init_val = mode->vdisplay;
tc_cfg.sync_threshold_start = DEFAULT_TEARCHECK_SYNC_THRESH_START;
tc_cfg.sync_threshold_continue = DEFAULT_TEARCHECK_SYNC_THRESH_CONTINUE;